The Mazda CX-3 1.8 SkyActiv-D 115hp (2018 ->) produces 115bhp and 270Nm in standard form. Our Stage 1 ECU tuning file raises output to 145bhp and 320Nm, a gain of 30bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.